The Screw,close Tolerance, cataloged under National Stock Number 5305-01-658-5019, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624); Federal Manufacturing Corp (CAGE 17943); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Howmet Global Fastening Systems Inc Div City of Industry Operations (CAGE 1RC86); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-658-5019 |
| Primary Part Number | BACB30LK4K6 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BACB30LK4K6 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30LK4K6 | Federal Manufacturing Corp (USA) |
| BACB30LK4K6 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30LK4K6 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30LK4K6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30LK4K6 | Howmet Global Fastening Systems Inc (USA) |
| BACB30LK4K6 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| BACB30LK4K6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-658-5019 is a Screw,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-658-5019 has 7 manufacturer part numbers on file: BACB30LK4K6 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30LK4K6 (Federal Manufacturing Corp), BACB30LK4K6 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30LK4K6 (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30LK4K6 (Sps Technologies, Llc Dba PB Fasteners) and 2 more.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.